I use my Bernina 180 daily. Two days ago, it started a new problem. I'm getting the "Please check the upper thread" message repeatedly. When I pull the thread out and rethread it, it will sew for about 20", then starts giving me the message again. I have taken the end cap off and have pulled some tiny threads out of the bobbin area. I don't see any loose threads in the upper area but have aired it all out. I am trying to see what is going on so have no thread in it, yet it still stops.
A 2nd problem that started a year ago: I use invisible thread a lot--now the thread repeatedly breaks. It worked fine in the past. I have tried a number of different brands--I don't think it is a brand issue. The only way I can get it to work at all is to loosen the tension all the way and then it just barely works.
Any ideas? Thanks.
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